Time Variant Reliability Under Environmental Loads

by Mark J. Marley, Principal Engineer; Hovik, Norway,

Document Type: Proceeding Paper

Part of: Structural Engineering in Natural Hazards Mitigation


Time variant reliability with deteriorating resistance under a stochastic load process is considered. An outcrossing formulation for fatigue degradation is presented, and a simple and conservative approximation based on a time invariant model is proposed. The formulations are extended to environmental load processes typical for marine structures. The methods are verified by Monte Carlo time step simulation.

Subject Headings: Environmental issues | Load factors | Structural reliability | Offshore structures | Chemical degradation | Fatigue (material) | Stochastic processes | Deterioration | Monaco | Europe

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